Add APC SMT750I (#1271)

Co-authored-by: Daniel W. Anner <daniel.anner@danstechsupport.com>

device-types/APC/SMT750I.yaml

@@ -0,0 +1,32 @@
+---
+manufacturer: APC
+model: SMT750I
+slug: apc-smt750i
+part_number: SMT750I
+u_height: 0
+is_full_depth: false
+comments: '[APC Smart-UPS, Line Interactive, 750VA, Tower, 230V, 6x IEC C13 outlets](https://www.apc.com/shop/mk/en/products/APC-Smart-UPS-Line-Interactive-750VA-Tower-230V-6x-IEC-C13-outlets-SmartSlot-AVR-LCD/P-SMT750I'
+weight: 13.18
+weight_unit: kg
+power-ports:
+  - name: Power Port 1
+    type: iec-60320-c14
+    maximum_draw: 500
+power-outlets:
+  - name: Power Outlet 1
+    type: iec-60320-c13
+  - name: Power Outlet 2
+    type: iec-60320-c13
+  - name: Power Outlet 3
+    type: iec-60320-c13
+  - name: Power Outlet 4
+    type: iec-60320-c13
+  - name: Power Outlet 5
+    type: iec-60320-c13
+  - name: Power Outlet 6
+    type: iec-60320-c13
+console-ports:
+  - name: USB
+    type: usb-a
+  - name: Serial
+    type: rj-45